Navegando por Assunto "Plantas ornamentais"

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Aspectos Biológicos do Acaro Plano, Tenuipalpus pacificus Baker (Acari: Tenuipalpidae)
(2001) Gondim Júnior, Manoel Guedes Correa; Oliveira, José Vargas de
O ácaro plano Tenuipalpus pacificus Baker foi coletado em Recife-PE, em orquídeas dos gêneros Cattleya, Dendrobium Laelia, Phalaenopsis e Vanda, e em avencas e samambaias Asplenium nidus, Davallia fejeensis, Nephrolepsis sp., Phymatodes scolopendria, Platycerium sp. e Polypodium sp. T. pacificus foi criado sobre P. scolopendria em incubadora (B. O. D.) nas condições de 25 ± 0,1 °C, 80 ± 0,5% de umidade relativa e 12 horas de fotofase, verificando-se a duração das fases de ovo, larva, protocrisálida, protoninfa, deutocrisálida, deutoninfa, telocrisálida e ovo-adulto de 12,8; 5,2; 2,9; 4,6; 2,7; 4,4; 3,3 e 35,8 dias; respectivamente. A viabilidade das formas imaturas foi de 81,8% e razão sexual foram de 81,8% e 2,5:1 (Fêmea: Macho).
Caracterização de acessos de Paspalum spp. para uso como planta ornamental na Zona da Mata de Pernambuco
(2019-03-26) Formolo, Aline Küster; Loges, Vivian; http://lattes.cnpq.br/2053727463453766; http://lattes.cnpq.br/7213144424417059
Doenças de plantas ornamentais no estado de Pernambuco no Biênio 1967 -1988
(1992) Mariano, Rosa de Lima Ramos; Peixoto, Ana Rosa; Holanda, Valéria Tavares; Menezes, Maria; Oliveira, Sônia Maria Alves de
Com o objetivo de relatar algumas das principais doenças de plantas ornamentais no Estado de Pernambuco, amostras foram coletadas em residências, jardins, praças, estacionamentos, ruas e plantios comerciais, nos municípios de Amaraji, Bom Jardim, Bonito, Gravatá, Recife e Vitória de Santo Antão. Foram estudados 19 hospedeiros sobre os quais foram assinalados os seguintes patógenos: antúrio (Anthurium sp), Colletotrichum gloeosporioides; babosa (Aloe sp.), Erwinia sp; buganvile (Bougainvillea sp.), Cercospora sp., C. gloeosporioides; café-de-salão (Coffea sp.), C. gloeosporioides; biri (Canna indica), Puccinia thaliae, comigo-ninguém-pode (Dieffenbachia maculata), C. gloeosporioides; crisântemo (Chrysanthemum sp.), Cladosporium sp., Fusarium oxysporum, dracena (Dracaena SP.), C. gloeosporíoides; espada-de-São Jorge (Sanseviería sp.), Rhizoctonia sp.; gerânio (Pelargonium zonale), P. pelargoniizonalis; gladíolo (Gladiolus sp.), Uromyces transversalis; hortência (Hydrangea sp.), C. gloeosporioides, Cercospora hydrangeae, Imbé (Philodendron sp.), Mycosphaerella sp.; jibóia (Epipremnum aureum), C. gloeosporioides, palmeira rabo-de-peixe (Caryota mitis), C. gloeosporioides, papoula ( Hibiscus rosa-sinensis), C. gloeosporioides, Oidium sp.; peperomia (Peperomia obtusifolia), C. gloeosporioides, rosa (Rosa sp.), Diplocarpon rosae; sombreiro (Clitoria racemosa), Cercospora sp., Oidium sp., Uredo goeldii e Sporidesmium folliculatum.
Estudo dos parâmetros bioquímicos em Canistrum aurantiacum submetidas ao co-cultivo com bactérias promotoras de crescimento
(2025-02-26) Monteiro, Lucas Matheus da Silva; Silva, Cláudia Ulisses de Carvalho; Oliveira, Henarmmany Cristina Alves de; http://lattes.cnpq.br/6859724202937192; http://lattes.cnpq.br/7161911278790052; http://lattes.cnpq.br/6998551497198155
Este estudo investigou a influência de bactérias promotoras de crescimento (BPCs) do gênero Bacillus no metabolismo primário de Canistrum aurantiacum, uma espécie ornamental nativa de Pernambuco e vulnerável. A pesquisa focou em parâmetros bioquímicos como pigmentos fotossintéticos e carotenoides, carboidratos, aminoácidos, proteínas e nitrato, com o objetivo de avaliar os efeitos das bactérias na planta. Os resultados indicaram que a inoculação com BPCs não apresentou variações significativas nos teores de pigmentos, carboidratos ou proteínas, tanto nas folhas quanto nas raízes. No entanto, observou-se uma modulação dos aminoácidos nas raízes, com os grupos tratados apresentando uma estabilidade maior em relação ao grupo controle. O tratamento com Bacillus megaterium mostrou um aumento significativo nos teores de nitrato nas raízes, sugerindo uma melhoria na absorção de nutrientes. Este estudo fornece insights iniciais importantes para o uso de BPCs em programas de cultivo de Canistrum aurantiacum.
Influência de diferentes substratos no crescimento inicial de rosa do deserto (Adenium obesum forssk. Roem. & Schult)
(2021-12-17) Souza, José Víctor de Melo; Bezerra, Elisangela Lucia de Santana; http://lattes.cnpq.br/4360870964749577; http://lattes.cnpq.br/8900822307167760
Although it is a relatively new ornamental plant on the market, the desert rose (Adenium obesum forssk. Roem. & Schult) is the fifth most traded in Brazil. Thus, the objective of this work was to evaluate the influence of different organic substrates on the development of desert rose seedlings. For development analysis, they were cultivated in vegetable soil for 9 days until germination, after which they continued to be watered daily for another 45 days, after which 60 individuals were selected and divided into 4 treatments for the experiment, namely: S1 (control group) 100% vegetable soil, S2 50% vegetable soil + 50% compost, S3 50% vegetable soil + 50% goat manure and S4 50% vegetable soil and 50% earthworm humus. The samples were kept in a greenhouse at random for 80 days and watered with 200ml at 48-hour intervals. After dismantling the experiment, the sample's morphometric data were collected and submitted to analysis of variance (ANOVA), and the means were compared by Tukey test at 5% significance. In all results, the treatments with goat manure and earthworm humus stood out and had results well above those of the control group, with averages such as leaf area and total size about five times larger than in the other treatments. Based on the results obtained, it was found that the treatments that best contributed to the development of Adenium obesum seedlings were treatments S3 (50% vegetable soil + 50% goat manure) and S4 (50% vegetable soil + 50% earthworm humus), proving that for seedlings of desert rose Adenium obesum (forssk. Roem. & Schult) the substrate porosity has a great contribution in its development.
Influência do sombreamento associado ao uso de regulador de crescimento em características agronômicas do girassol ornamental (Helianthus annuus)
(2020) Oliveira, Cibely Ferreira de; Almeida, Rosa Honorato de; http://lattes.cnpq.br/4319299572657528; http://lattes.cnpq.br/2451690212011839
One of the bottlenecks seen by ornamental sunflower producers in the semi-arid region of the Northeast are edaphoclimatic factors, such as temperature and excessive light, in addition to practical crops, such as soil cover, making it necessary to carry out alternatives that mitigate this stress caused on the plant. Thus, an experiment was conducted in an experimental area at the Federal Rural University of Pernambuco, at the Serra Talhada UFRPE / UAST Academic Unit, from November 2019 to January 2020. With this work, the effects of using of different levels of shading combined with regulator of different dose levels in the growth, development and production of flowers in the sunflower culture. The experimental design used was completely randomized in a 4x4 factorial scheme, with treatments referring to the four levels of growth regulator doses 0; 2; 4 and 6 mg / L-1 in interaction with four shading 0, 30, 50 and 70% for flower production in sunflower culture. Three repetitions were used, with two replicates for each repetition, where the sunflower was evaluated. The treatments started to be applied 15 days after seedling emergence (DAE) and another 15 days when the plant had 6 true leaves. Due to flowering, the phytomass, fresh and dry plant variables, number of leaves, buds and flowers, and plant height were evaluated. In relation to plant height for commercialization, the control showed a better performance. Shading at 30% showed increases in fresh and dry phytomass. For the number of leaves, the highlight was the 70% shaded plants.
Levantamento e classificação da toxicidade das plantas ornamentais presentes nos parques urbanos de Recife - Pernambuco
(2023-05-02) Zelaquett, Danilo de Souza; Brasileiro, Hélida Maria de Lima Maranhão; http://lattes.cnpq.br/4735569144086617; http://lattes.cnpq.br/2587653841058709
The presence of green areas in urban centers is essential for the well-being of the population, but many ornamental plants can be toxic. The toxic agents of plants are linked to their secondary metabolism such as oxalates, saponins, alkaloids, glycosides and terpenes. Although the number of cases of plant poisoning is small, children are the most expected. The objective of this study was to carry out a survey of toxic ornamental plants present in 07 urban parks in Recife, capital of Pernambuco, and classify them according to their degree of toxicity. For this, instruments were used to collect information and record images, taxonomic identification, classification of the degree of toxicity, description of the part of the plant related to poisoning and prevalent toxic metabolites. In the parks, 29 species of toxic ornamental plants were identified, belonging to 12 botanical families, of which species from the families Apocynaceae, Araceae and Euphorbiaceae totaled 52%. The species Mangifera indica, Sansevieria trifasciata, Plumeria rubra and Thaumatophyllum bipinnatifidum were the most common, while the plants with the highest degree of toxicity found in the parks were Duranta erecta, Lantana camara, Nerium oleander and Thevetia peruviana. In all the evaluated parks, toxic plants were found near the recreation and food areas, most of the time unidentified, and with free access to the population and animals. Thus, it is necessary that the choice of species used consider their toxic potential, that more studies are careful and that educational activities are implemented for population knowledge and the adoption of preventive measures for accidents.